From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mail-il1-f200.google.com (mail-il1-f200.google.com [209.85.166.200]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 8F10A1A707A for ; Tue, 24 Sep 2024 12:01:07 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.166.200 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1727179268; cv=none; b=Ze4QQ19mPVt15vKpoojZm7sHCwC+buqR9tjS+lRABh7qq4v9Z9IfS7tTeammgFx+LqW6dtnGDMlPTRjhYKK60DbUs/WgHd9jEEG5ibM+brA6ItGp/1C3fGEBdXC17WeXhth9ztPZ/MHKj89QIvRMi4lo9AGa4SKI7Z8uxxdOQNg= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1727179268; c=relaxed/simple; bh=cObrgCUSvHW+ygJ1FqkY0+Tz/uCqpy6uPK5t+gWO+j8=; h=MIME-Version:Date:In-Reply-To:Message-ID:Subject:From:To: Content-Type; b=Vw8s2D2G4bbQFxA0ZJxk0sZz/lMELqOErgA+G+9nlGhuYrgCA8U/wDIZ+z36dcho1lKcq5q4LnroKW2q69O8FtQ/w20U2EhxQuPmMuBZtSKq1TwUgKNHsBvOdaePR/ED3w/VxuSeyzAUJwlr0U4CbXb7FWjtnbskjRfh1rb8u+g= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=fail (p=none dis=none) header.from=syzkaller.appspotmail.com; spf=pass smtp.mailfrom=M3KW2WVRGUFZ5GODRSRYTGD7.apphosting.bounces.google.com; arc=none smtp.client-ip=209.85.166.200 Authentication-Results: smtp.subspace.kernel.org; dmarc=fail (p=none dis=none) header.from=syzkaller.appspotmail.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=M3KW2WVRGUFZ5GODRSRYTGD7.apphosting.bounces.google.com Received: by mail-il1-f200.google.com with SMTP id e9e14a558f8ab-3a1a8b992d3so1973405ab.0 for ; Tue, 24 Sep 2024 05:01:07 -0700 (PDT) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1727179266; x=1727784066; h=to:from:subject:message-id:in-reply-to:date:mime-version :x-gm-message-state:from:to:cc:subject:date:message-id:reply-to; bh=L6XSwTL3/zFm9C67RW1I8K+Y0nZgbXlIR8uoPmui7Ow=; b=Dli241giMRHVP+SkHVpKm9bpq0jZMylemOkRAPKs+syWSXI/JMiA0RbOrNGUaNn42H wRQMzBcDh0U6n35Wn8dORfGcrdZwRF3YV7PN6O/h2L32fvkkMQImOYCk+TpEcVELNQ4w 78vFMSvll/l1ve4ttewVTpBkbTSxjx37ey6AvaPNVqzIuWsxXG4HGyDqgxhAQcvZuzrg NqqQBJP/hVmEqJ4EOu9GUYYEOhW5SXLNRnryg6V8kYuncrGuLMTeZi3E4H5igMfmNRB+ 7tw0/GaDjrpG/10cPd6szdTdabmYRJAu2EYeCAku0szE/2yj1IY4zMPvtXxDPXF52OgK 830A== X-Forwarded-Encrypted: i=1; AJvYcCV97Q7TVmXGRwMjMnncLOo6435VG9rLqhUSQ87fPL3VtGrXSQWVEs19A0a2t+zC4s7SYAxPK74=@vger.kernel.org X-Gm-Message-State: AOJu0YwrBl6NQ5ncToeS+/GcFXtXPelUlvhw+FrlT1mo2LfDa1/yO4l4 T4RqTEAlAjEEbZkPOYNFaY1f5CLR4/H30Vri532A7oCygjiE3bY001p3Y7olfkUrAHrQ2/P82wB Fh0AzuG0aRjeoZoX4y249rrWSYYd22HQMqdoBvHv0bDAnxjiZ1xuEQaE= X-Google-Smtp-Source: AGHT+IHrOmvjiLzvF7jwvN3hI5LzS+Kv/KB41hVRF7f6fcdWg2aKQjwpw0ahz2JHQBSNt2sFKNFZvypTChxKfYan2ZHULmNIvNPZ Precedence: bulk X-Mailing-List: netdev@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-Received: by 2002:a05:6e02:1a64:b0:3a0:ca91:2b4e with SMTP id e9e14a558f8ab-3a1a2fd73ffmr19734095ab.3.1727179264991; Tue, 24 Sep 2024 05:01:04 -0700 (PDT) Date: Tue, 24 Sep 2024 05:01:04 -0700 In-Reply-To: <00000000000020c8d0061e647124@google.com> X-Google-Appengine-App-Id: s~syzkaller X-Google-Appengine-App-Id-Alias: syzkaller Message-ID: <66f2aa00.050a0220.c23dd.0029.GAE@google.com> Subject: Re: [syzbot] [net?] INFO: task hung in addrconf_dad_work (5) From: syzbot To: bigeasy@linutronix.de, davem@davemloft.net, dsahern@kernel.org, edumazet@google.com, kerneljasonxing@gmail.com, kuba@kernel.org, linux-kernel@vger.kernel.org, netdev@vger.kernel.org, pabeni@redhat.com, syzkaller-bugs@googlegroups.com, tglx@linutronix.de Content-Type: text/plain; charset="UTF-8" syzbot has bisected this issue to: commit d15121be7485655129101f3960ae6add40204463 Author: Paolo Abeni Date: Mon May 8 06:17:44 2023 +0000 Revert "softirq: Let ksoftirqd do its job" bisection log: https://syzkaller.appspot.com/x/bisect.txt?x=103252a9980000 start commit: af9c191ac2a0 Merge tag 'trace-ring-buffer-v6.12' of git://.. git tree: upstream console output: https://syzkaller.appspot.com/x/log.txt?x=143252a9980000 kernel config: https://syzkaller.appspot.com/x/.config?x=74ffdb3b3fad1a43 dashboard link: https://syzkaller.appspot.com/bug?extid=82ccd564344eeaa5427d syz repro: https://syzkaller.appspot.com/x/repro.syz?x=162e9c27980000 C reproducer: https://syzkaller.appspot.com/x/repro.c?x=1123c107980000 Reported-by: syzbot+82ccd564344eeaa5427d@syzkaller.appspotmail.com Fixes: d15121be7485 ("Revert "softirq: Let ksoftirqd do its job"") For information about bisection process see: https://goo.gl/tpsmEJ#bisection